<title>特殊方格棋盘</title><link href="http://hzoi.com/tomorrow.css" rel="stylesheet"><div class="ui existing segment"><pre><code><span class="pl-cp">#include</span> <span class="pl-cpf">&lt;cstdio&gt;</span><span class="pl-cp"></span>
<span class="pl-k">using</span> <span class="pl-k">namespace</span> <span class="pl-n">std</span><span class="pl-p">;</span>
<span class="pl-kt">long</span> <span class="pl-kt">long</span> <span class="pl-n">f</span><span class="pl-p">[</span><span class="pl-mi">1</span> <span class="pl-o">&lt;&lt;</span> <span class="pl-mi">20</span><span class="pl-p">],</span> <span class="pl-n">s</span><span class="pl-p">[</span><span class="pl-mi">25</span><span class="pl-p">];</span>
<span class="pl-kt">int</span> <span class="pl-nf">main</span><span class="pl-p">()</span> <span class="pl-p">{</span>
    <span class="pl-kt">int</span> <span class="pl-n">n</span><span class="pl-p">,</span> <span class="pl-n">m</span><span class="pl-p">;</span>
    <span class="pl-n">scanf</span><span class="pl-p">(</span><span class="pl-s">&quot;%d%d&quot;</span><span class="pl-p">,</span> <span class="pl-o">&amp;</span><span class="pl-n">n</span><span class="pl-p">,</span> <span class="pl-o">&amp;</span><span class="pl-n">m</span><span class="pl-p">);</span>
    <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span> <span class="pl-o">=</span> <span class="pl-mi">0</span><span class="pl-p">,</span> <span class="pl-n">a</span><span class="pl-p">,</span> <span class="pl-n">b</span><span class="pl-p">;</span> <span class="pl-n">i</span> <span class="pl-o">&lt;</span> <span class="pl-n">m</span><span class="pl-p">;</span> <span class="pl-n">i</span><span class="pl-o">++</span><span class="pl-p">)</span> <span class="pl-p">{</span>
        <span class="pl-n">scanf</span><span class="pl-p">(</span><span class="pl-s">&quot;%d%d&quot;</span><span class="pl-p">,</span><span class="pl-o">&amp;</span><span class="pl-n">a</span><span class="pl-p">,</span><span class="pl-o">&amp;</span><span class="pl-n">b</span><span class="pl-p">);</span>
        <span class="pl-n">s</span><span class="pl-p">[</span><span class="pl-n">a</span><span class="pl-p">]</span> <span class="pl-o">+=</span> <span class="pl-mi">1</span> <span class="pl-o">&lt;&lt;</span> <span class="pl-p">(</span><span class="pl-n">b</span> <span class="pl-o">-</span> <span class="pl-mi">1</span><span class="pl-p">);</span>
    <span class="pl-p">}</span>
    <span class="pl-n">f</span><span class="pl-p">[</span><span class="pl-mi">0</span><span class="pl-p">]</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span>
    <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">long</span> <span class="pl-kt">long</span> <span class="pl-n">i</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">i</span> <span class="pl-o">&lt;=</span> <span class="pl-p">(</span><span class="pl-mi">1</span> <span class="pl-o">&lt;&lt;</span> <span class="pl-n">n</span><span class="pl-p">);</span> <span class="pl-n">i</span><span class="pl-o">++</span><span class="pl-p">)</span> <span class="pl-p">{</span>
        <span class="pl-kt">long</span> <span class="pl-kt">long</span> <span class="pl-n">num</span> <span class="pl-o">=</span> <span class="pl-mi">0</span><span class="pl-p">;</span>
        <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">long</span> <span class="pl-kt">long</span> <span class="pl-n">t</span> <span class="pl-o">=</span> <span class="pl-n">i</span><span class="pl-p">;</span> <span class="pl-n">t</span> <span class="pl-o">&gt;</span> <span class="pl-mi">0</span><span class="pl-p">;</span> <span class="pl-n">t</span> <span class="pl-o">-=</span> <span class="pl-n">t</span> <span class="pl-o">&amp;</span> <span class="pl-o">-</span><span class="pl-n">t</span><span class="pl-p">)</span> <span class="pl-n">num</span><span class="pl-o">++</span><span class="pl-p">;</span>
        <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">long</span> <span class="pl-kt">long</span> <span class="pl-n">t</span> <span class="pl-o">=</span> <span class="pl-n">i</span><span class="pl-p">;</span> <span class="pl-n">t</span> <span class="pl-o">&gt;</span> <span class="pl-mi">0</span><span class="pl-p">;</span> <span class="pl-n">t</span> <span class="pl-o">-=</span> <span class="pl-n">t</span> <span class="pl-o">&amp;</span> <span class="pl-o">-</span><span class="pl-n">t</span><span class="pl-p">)</span>
            <span class="pl-k">if</span> <span class="pl-p">(</span><span class="pl-o">!</span><span class="pl-p">(</span><span class="pl-n">s</span><span class="pl-p">[</span><span class="pl-n">num</span><span class="pl-p">]</span> <span class="pl-o">&amp;</span> <span class="pl-p">(</span><span class="pl-n">t</span> <span class="pl-o">&amp;</span> <span class="pl-o">-</span><span class="pl-n">t</span><span class="pl-p">)))</span> <span class="pl-n">f</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">]</span> <span class="pl-o">+=</span> <span class="pl-n">f</span><span class="pl-p">[</span><span class="pl-n">i</span> <span class="pl-o">&amp;</span> <span class="pl-o">~</span><span class="pl-p">(</span><span class="pl-n">t</span> <span class="pl-o">&amp;</span> <span class="pl-o">-</span><span class="pl-n">t</span><span class="pl-p">)];</span>
    <span class="pl-p">}</span>
    <span class="pl-n">printf</span><span class="pl-p">(</span><span class="pl-s">&quot;%lld</span><span class="pl-se">\n</span><span class="pl-s">&quot;</span><span class="pl-p">,</span><span class="pl-n">f</span><span class="pl-p">[(</span><span class="pl-mi">1</span> <span class="pl-o">&lt;&lt;</span> <span class="pl-n">n</span><span class="pl-p">)</span> <span class="pl-o">-</span> <span class="pl-mi">1</span><span class="pl-p">]);</span>
    <span class="pl-k">return</span> <span class="pl-mi">0</span><span class="pl-p">;</span>
<span class="pl-p">}</span>
</cpde></pre></div>